Gao Huan vs Tian Yu

Gao Huan defeated the Erzhu clan at the Battle of Shanyin, ending their dominance over the Northern Wei court. This victory allowed him to install Emperor Xiaowu as a puppet ruler and become the de facto ruler of northern China.

After a split with Emperor Xiaowu, Gao Huan established the Eastern Wei Dynasty with Emperor Xiaojing as a puppet ruler. He controlled the eastern half of northern China from his capital at Yecheng, ruling as de facto dictator until his death.

Gao Huan died from illness at age 51. His sons Gao Cheng and Gao Yang succeeded him, with Gao Yang later founding the Northern Qi Dynasty, fulfilling Gao Huan's ambition of establishing a new ruling house.

Tian Yu led Wei forces against the Xianbei tribes raiding the northern frontier. He employed a strategy of building forts and using cavalry to intercept raiders, stabilizing the border region.

Tian Yu defended Yanmen Commandery against a Xianbei invasion. He used a feigned retreat to lure the enemy into an ambush, killing their leader and scattering the tribe. This victory secured the northern frontier for years.

Tian Yu was appointed Governor of You Province, overseeing Wei's northern territories. He implemented policies to integrate non-Chinese tribes into the Wei state, reducing border conflicts through diplomacy and trade.

Tian Yu supported Sima Yi's coup against Cao Shuang. He led troops to secure key positions in the capital, ensuring the success of the coup. This event marked the rise of the Sima family's control over Wei.